diff mbox

[v4,1/5] ARM: dts: enable hdmi for exynos5250 based snow board

Message ID 1400035562-16832-2-git-send-email-rahul.sharma@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Rahul Sharma May 14, 2014, 2:45 a.m. UTC
From: Rahul Sharma <Rahul.Sharma@samsung.com>

Enable support for HDMI for exynos5250 based Snow board.

Signed-off-by: Rahul Sharma <Rahul.Sharma@samsung.com>
---
 arch/arm/boot/dts/exynos5250-cros-common.dtsi |    6 +++++-
 arch/arm/boot/dts/exynos5250-pinctrl.dtsi     |    7 +++++++
 arch/arm/boot/dts/exynos5250-snow.dts         |    7 +++++++
 3 files changed, 19 insertions(+), 1 deletion(-)

Comments

Tomasz Figa May 14, 2014, 7:41 p.m. UTC | #1
Hi Rahul,

On 14.05.2014 04:45, Rahul Sharma wrote:
> From: Rahul Sharma <Rahul.Sharma@samsung.com>
> 
> Enable support for HDMI for exynos5250 based Snow board.
> 
> Signed-off-by: Rahul Sharma <Rahul.Sharma@samsung.com>
> ---
>  arch/arm/boot/dts/exynos5250-cros-common.dtsi |    6 +++++-
>  arch/arm/boot/dts/exynos5250-pinctrl.dtsi     |    7 +++++++
>  arch/arm/boot/dts/exynos5250-snow.dts         |    7 +++++++
>  3 files changed, 19 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/exynos5250-cros-common.dtsi b/arch/arm/boot/dts/exynos5250-cros-common.dtsi
> index 2c1560d..89ac90f 100644
> --- a/arch/arm/boot/dts/exynos5250-cros-common.dtsi
> +++ b/arch/arm/boot/dts/exynos5250-cros-common.dtsi
> @@ -240,7 +240,7 @@
>  		samsung,i2c-sda-delay = <100>;
>  		samsung,i2c-max-bus-freq = <378000>;
>  
> -		hdmiphy@38 {
> +		hdmiphy: hdmiphy@38 {
>  			compatible = "samsung,exynos4212-hdmiphy";
>  			reg = <0x38>;
>  		};
> @@ -304,6 +304,10 @@
>  
>  	hdmi {
>  		hpd-gpio = <&gpx3 7 0>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&hdmi_hpd_irq>;
> +		phy = <&hdmiphy>;
> +		ddc = <&i2c_2>;
>  	};
>  
>  	gpio-keys {
> diff --git a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
> index 9a49e68..da3ae66 100644
> --- a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
> +++ b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
> @@ -560,6 +560,13 @@
>  			samsung,pin-pud = <0>;
>  			samsung,pin-drv = <0>;
>  		};
> +
> +		hdmi_hpd_irq: hdmi-hpd-irq {
> +			samsung,pins = "gpx3-7";
> +			samsung,pin-function = <0>;
> +			samsung,pin-pud = <1>;
> +			samsung,pin-drv = <0>;
> +		};

Based on the fact that this is just being configured as input, I don't
think this is a generic special function, but rather a board-specific
GPIO, which should be defined in dts of respective board.

>  	};
>  
>  	pinctrl@13400000 {
> diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts
> index 1ce1088..696850a 100644
> --- a/arch/arm/boot/dts/exynos5250-snow.dts
> +++ b/arch/arm/boot/dts/exynos5250-snow.dts
> @@ -206,4 +206,11 @@
>  			clock-frequency = <24000000>;
>  		};
>  	};
> +
> +	hdmi {
> +		hdmi-en-supply = <&tps65090_fet7>;
> +		vdd-supply = <&ldo8_reg>;
> +		vdd_osc-supply = <&ldo10_reg>;
> +		vdd_pll-supply = <&ldo8_reg>;

Hmm, those regulators don't seem to be listed in
Documentation/devicetree/bindings/video/exynos_hdmi.txt, at least in
today's linux-next. The driver seems to use them, though.

This isn't a problem with this patch, but if you're working on this,
could you also fix the documentation in separate patch?

Best regards,
Tomasz
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Rahul Sharma May 15, 2014, 5:22 a.m. UTC | #2
Tomasz,

On 15 May 2014 01:11, Tomasz Figa <tomasz.figa@gmail.com> wrote:
> Hi Rahul,
>
> On 14.05.2014 04:45, Rahul Sharma wrote:
>> From: Rahul Sharma <Rahul.Sharma@samsung.com>
>>
>> Enable support for HDMI for exynos5250 based Snow board.
>>
>> Signed-off-by: Rahul Sharma <Rahul.Sharma@samsung.com>
>> ---
>>  arch/arm/boot/dts/exynos5250-cros-common.dtsi |    6 +++++-
>>  arch/arm/boot/dts/exynos5250-pinctrl.dtsi     |    7 +++++++
>>  arch/arm/boot/dts/exynos5250-snow.dts         |    7 +++++++
>>  3 files changed, 19 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/arm/boot/dts/exynos5250-cros-common.dtsi b/arch/arm/boot/dts/exynos5250-cros-common.dtsi
>> index 2c1560d..89ac90f 100644
>> --- a/arch/arm/boot/dts/exynos5250-cros-common.dtsi
>> +++ b/arch/arm/boot/dts/exynos5250-cros-common.dtsi
>> @@ -240,7 +240,7 @@
>>               samsung,i2c-sda-delay = <100>;
>>               samsung,i2c-max-bus-freq = <378000>;
>>
>> -             hdmiphy@38 {
>> +             hdmiphy: hdmiphy@38 {
>>                       compatible = "samsung,exynos4212-hdmiphy";
>>                       reg = <0x38>;
>>               };
>> @@ -304,6 +304,10 @@
>>
>>       hdmi {
>>               hpd-gpio = <&gpx3 7 0>;
>> +             pinctrl-names = "default";
>> +             pinctrl-0 = <&hdmi_hpd_irq>;
>> +             phy = <&hdmiphy>;
>> +             ddc = <&i2c_2>;
>>       };
>>
>>       gpio-keys {
>> diff --git a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
>> index 9a49e68..da3ae66 100644
>> --- a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
>> +++ b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
>> @@ -560,6 +560,13 @@
>>                       samsung,pin-pud = <0>;
>>                       samsung,pin-drv = <0>;
>>               };
>> +
>> +             hdmi_hpd_irq: hdmi-hpd-irq {
>> +                     samsung,pins = "gpx3-7";
>> +                     samsung,pin-function = <0>;
>> +                     samsung,pin-pud = <1>;
>> +                     samsung,pin-drv = <0>;
>> +             };
>
> Based on the fact that this is just being configured as input, I don't
> think this is a generic special function, but rather a board-specific
> GPIO, which should be defined in dts of respective board.
>

Ok.

>>       };
>>
>>       pinctrl@13400000 {
>> diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts
>> index 1ce1088..696850a 100644
>> --- a/arch/arm/boot/dts/exynos5250-snow.dts
>> +++ b/arch/arm/boot/dts/exynos5250-snow.dts
>> @@ -206,4 +206,11 @@
>>                       clock-frequency = <24000000>;
>>               };
>>       };
>> +
>> +     hdmi {
>> +             hdmi-en-supply = <&tps65090_fet7>;
>> +             vdd-supply = <&ldo8_reg>;
>> +             vdd_osc-supply = <&ldo10_reg>;
>> +             vdd_pll-supply = <&ldo8_reg>;
>
> Hmm, those regulators don't seem to be listed in
> Documentation/devicetree/bindings/video/exynos_hdmi.txt, at least in
> today's linux-next. The driver seems to use them, though.
>
> This isn't a problem with this patch, but if you're working on this,
> could you also fix the documentation in separate patch?
>

I will post another patch for documentation update.

Regards,
Rahul Sharma.

> Best regards,
> Tomasz
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diff mbox

Patch

diff --git a/arch/arm/boot/dts/exynos5250-cros-common.dtsi b/arch/arm/boot/dts/exynos5250-cros-common.dtsi
index 2c1560d..89ac90f 100644
--- a/arch/arm/boot/dts/exynos5250-cros-common.dtsi
+++ b/arch/arm/boot/dts/exynos5250-cros-common.dtsi
@@ -240,7 +240,7 @@ 
 		samsung,i2c-sda-delay = <100>;
 		samsung,i2c-max-bus-freq = <378000>;
 
-		hdmiphy@38 {
+		hdmiphy: hdmiphy@38 {
 			compatible = "samsung,exynos4212-hdmiphy";
 			reg = <0x38>;
 		};
@@ -304,6 +304,10 @@ 
 
 	hdmi {
 		hpd-gpio = <&gpx3 7 0>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&hdmi_hpd_irq>;
+		phy = <&hdmiphy>;
+		ddc = <&i2c_2>;
 	};
 
 	gpio-keys {
diff --git a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
index 9a49e68..da3ae66 100644
--- a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
+++ b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
@@ -560,6 +560,13 @@ 
 			samsung,pin-pud = <0>;
 			samsung,pin-drv = <0>;
 		};
+
+		hdmi_hpd_irq: hdmi-hpd-irq {
+			samsung,pins = "gpx3-7";
+			samsung,pin-function = <0>;
+			samsung,pin-pud = <1>;
+			samsung,pin-drv = <0>;
+		};
 	};
 
 	pinctrl@13400000 {
diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts
index 1ce1088..696850a 100644
--- a/arch/arm/boot/dts/exynos5250-snow.dts
+++ b/arch/arm/boot/dts/exynos5250-snow.dts
@@ -206,4 +206,11 @@ 
 			clock-frequency = <24000000>;
 		};
 	};
+
+	hdmi {
+		hdmi-en-supply = <&tps65090_fet7>;
+		vdd-supply = <&ldo8_reg>;
+		vdd_osc-supply = <&ldo10_reg>;
+		vdd_pll-supply = <&ldo8_reg>;
+	};
 };